Henkel Lite-Lok 499

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Description for Henkel Lite-Lok 499

• Product Assembly Adhesive • Bonding of Plastics and Metals • Fast Cure Under UV light • Secondary • Moisture Cure • Versatile Adhesion • Cures in Shadowed Areas •

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Brand	Bondmaster
Application Type	Bond, Seal, Adhesive: Instant Adhesives
1 Part or 2 Part	1 Part
Material Form	Liquid
Substrate	Glass, Metals, Plastics, Fiberglass reinforced polyester, Polystyrene, ABS
Manufacturer	Henkel
Chemistry	Acrylate
Cure Method	Moisture, UV
Cure Time (min)	Fast, 0.08 to 0.17
Viscosity (cPs)	3,100
Color	Light Blue, Translucent

Best Practices for Henkel Lite-Lok 499

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Technical Data for Henkel Lite-Lok 499

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Overview

Application Type
- Adhesive - Bond
- Adhesive: Instant Adhesives
- Sealant - Seal
1 Part or 2 Part
- 1 Part or 2 Part - 1 Part
Material Form
- Liquid
Substrate
- Glass
- Metal - Metals
- Plastic - Plastics, ABS
- Polystyrene (PS) - Polystyrene
- Polyester - Fiberglass reinforced polyester
- Other - K-Res, Valox, Parylene, Pellethane
Chemistry
- Acrylic - Acrylate
Application Method
- Dispenser - Piston pump dispensing system, Pressure pot
Cure Method
- UV / Visible Light - UV
- Moisture / Condensation Cure - Moisture
Color
- Translucent
- Blue - Light Blue
Brand
- Bondmaster

Specifications

Cure Specs

Cure Time (min)	Fast, 0.08 to 0.17
Viscosity (cPs)	3,100

Bond Strength

General Bond Strength (psi)	very good adhesion

Hardness

Shore A Hardness	>40	Test Method
Shore D Hardness	>30	Test Method

Business Information

Shelf Life Details	LITE - LOK 499 has a shelf life of three months when stored at 25°C (77°F).;Store at or below 25°C (77°F), do not freeze.
Shelf Life Temperature (°F)	77
Shelf Life (mon)	3

Best Practices for Henkel Lite-Lok 499

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1. Surface Preparation
  
  LITE -LOK 499 bonds well to many untreated surfaces. However, adhesion is often improved by surface preparation before bonding. The surface should be free of contamination such as dirt, dust, grease or oil. An alcohol wipe is suitable for cleaning most surfaces. Optimum strength is obtained by abrading the surface followed by a solvent wipe to remove any loose particles. Polyolefins must be corona treated, or flame treated before bonding.
2. Application
  
  LITE -LOK 499 is best applied by extruding the product onto the substrate to be sealed or bonded using a 16-20 gauge dispensing tip. Sufficient product must be applied to seal all gaps, and completely coat the part to be bonded or sealed. After dispensing onto the part, the product should be cured as soon as possible to prevent any pre-reaction with ambient light.
  
  LITE -LOK 499 may be applied via a pressure pot, or piston pump dispensing system. All fittings and tubing used in the dispensing system must be opaque to light. Since the product is also moisture curable, all fittings and lines must be completely sealed against moisture. Compressed air used for dispensing should be dry to avoid introduction of moisture into the product.
3. Curing
  
  The time needed for UV curing is a combination of many factors. Some of these are the following:
  
  The thicker the substrate, the longer the exposure time needed for curing.
  
  The more UV light absorbing that the substrate is, the longer the exposure time needed for curing. § The lower that the intensity of the UV light source is, the longer the exposure time needed for curing.
  
  The farther the distance of the product from the UV light source, the longer the exposure time needed for curing.
  
  Typically, LITE-LOK 499 will cure after a UV light exposure from five to ten seconds, when cured at or near the focal point of a high intensity UV light source. Moisture cure occurs at ambient temperature and humidity.
Comparable Materials for Henkel Lite-Lok 499

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Spec Engine^® Results
- 3401(Dymax)
  UV/Visible Light Cure; Blue Fluorescing for Easy in-line inspection; Moisture and Thermal Resistance.
- 4L52(Henkel)
  •Excellent service temperature • RangeFlexible adhesive • Sealer •
- Bondmaster 4L67(Henkel)
  An ultraviolet light cure adhesive. This adhesive will bond most plastics commonly used in the medical device industry, such as polycarbonate, PVC, polysulfone, SAN, ABS, and SBR.
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